spicule

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spicule

 [spik´ūl]
a sharp, needle-like body or spike.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

spic·ule

(spik'yūl),
1. A small needle-shaped body.
2. Accessory reproductive structure in male nematodes; useful in identification of species.
[L. spiculum, dim. of spica, or spicum, a point]
Farlex Partner Medical Dictionary © Farlex 2012

spicule

(spĭk′yo͞ol) also

spicula

(-yə-lə)
n. pl. spic·ules also spic·ulae (-yə-lē)
A small needlelike structure or part, such as one of the silicate or calcium carbonate processes supporting the soft tissue of certain invertebrates, especially sponges.

spic′u·lar (-yə-lər), spic′u·late (-yə-lĭt, -lāt′) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

spic·ule

(spik'yūl)
A small, needle-shaped body.
[L. spiculum, dim. of spica, or spicum, a point]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

spicule

  1. a small spiked structure in male nematode worms that assists in copulation.
  2. a slender rod of calcium carbonate found in sponges, that supports the soft wall.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

spic·ule

(spik'yūl)
A small, needle-shaped body.
[L. spiculum, dim. of spica, or spicum, a point]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The group of spiculae in the distal part of palea deviates from all modifications of palea in other Pardosine groups, where all paleal modifications are well sclerotized.
Heick et al[6] stated that this phenomenon occurs for various reasons, including (1) calcification of the tumor, (2) formation of osteoid spiculae, and (3) genuine ossification of the meningioma and osteolytic activity.
The Silurian part of the section seems to contain a more abundant and diverse fossil assemblage, including in addition to the microfossils listed above also 1-4 fragments of graptolites, ostracodes, inarticulate brachiopods and some sponge spiculae.